Figure 9 IP tab of SM with NAT enabled
In the IP tab of an SM with NAT enabled, you may set the following parameters.
Table 3 SM with NAT enabled - IP attributes Attribute Meaning
NAT Network Interface Configuration, IP Address
Assign an IP address for SM management through Ethernet access to the SM. Set only the first three bytes. The last byte is permanently set to 1. This address becomes the base for the range of DHCP-assigned addresses.
NAT Network Interface Configuration, Subnet Mask
Assign a subnet mask of 255.255.255.0 or a more restrictive subnet mask. Set only the last byte of this subnet mask. Each of the first three bytes is permanently set to 255.
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NAT tab of the SM with NAT disabled
pmp-0050 (January 2013) 1-17 In the NAT tab of an SM with NAT disabled, you may set the following parameters.
Table 4 SM with NAT disabled - NAT attributes Attribute Meaning
NAT Enable/Disable This parameter enables or disabled the Network Address Translation
(NAT) feature for the SM. NAT isolates devices connected to the Ethernet/wired side of an SM from being seen directly from the wireless side of the SM. With NAT enabled, the SM has an IP address for transport traffic separate from its address for management, terminates transport traffic, and allows you to assign a range of IP addresses to devices that are connected to the Ethernet/wired side of the SM When NAT is enabled, VLANs are not supported on the wired side of that SM. You can enable NAT in SMs within a sector where VLAN is enabled in the AP, but this may constrain network design
WAN Interface, Connection Type
This parameter is not configurable when NAT is disabled.
WAN Interface, IP Address This field displays the IP address for the SM. DHCP Server will not
automatically assign this address when NAT is disabled.
WAN Interface, Subnet Mask This field displays the subnet mask for the SM. DHCP Server will not
automatically assign this address when NAT is disabled. WAN Interface, Gateway IP
Address
This field displays the gateway IP address for the SM. DHCP Server
will not automatically assign this address when NAT is disabled. WAN Interface, Reply to Ping
on WAN Interface
This parameter is not configurable when NAT is disabled.
LAN Interface, IP Address This parameter is not configurable when NAT is disabled. LAN Interface, Subnet Mask This parameter is not configurable when NAT is disabled. LAN Interface, DMZ Enable This parameter is not configurable when NAT is disabled. LAN Interface, DMZ IP
Address
This parameter is not configurable when NAT is disabled.
LAN DHCP Server, DHCP Server Enable/Disable
This parameter is not configurable when NAT is disabled.
LAN DHCP Server, DHCP Server Lease Timeout
This parameter is not configurable when NAT is disabled.
LAN DHCP Server, DHCP Start IP
This parameter is not configurable when NAT is disabled.
LAN DHCP Server, Number of IPs to Lease
This parameter is not configurable when NAT is disabled.
LAN DHCP Server, DNS Server Proxy
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Attribute Meaning
LAN DHCP Server, DNS IP Address
This parameter is not configurable when NAT is disabled.
LAN DHCP Server, Preferred DNS IP Address
This parameter is not configurable when NAT is disabled.
LAN DHCP Server, Alternate DNS IP Address
This parameter is not configurable when NAT is disabled.
Remote Configuration Interface, Interface Enable/Disable
This parameter is not configurable when NAT is disabled.
Remote Configuration Interface, Connection Type
This parameter is not configurable when NAT is disabled.
Remote Configuration Interface, IP Address
This parameter is not configurable when NAT is disabled.
Remote Configuration Interface, Subnet Mask
This parameter is not configurable when NAT is disabled.
Remote Configuration Interface, Gateway IP Address
This parameter is not configurable when NAT is disabled.
Remote Configuration Interface, DNS IP Address
This parameter is not configurable when NAT is disabled.
Remote Configuration Interface, Preferred DNS Server
This parameter is not configurable when NAT is disabled.
Remote Connection Interface, Alternate DNS Server
This parameter is not configurable when NAT is disabled.
Remote Connection Interface, Domain Name
This parameter is not configurable when NAT is disabled.
NAT Protocol Parameters, ARP Cache Timeout
If a router upstream has an ARP cache of longer duration (as some use 30 minutes), enter a value of longer duration than the router ARP cache. The default value of this field is 20 minutes.
NAT Protocol Parameters, TCP Session Garbage Timeout
Where a large network exists behind the SM, you can set this parameter to lower than the default value of 120 minutes. This action makes additional resources available for greater traffic than the default value accommodates.
NAT Protocol Parameters, UDP Session Garbage Timeout
You may adjust this parameter in the range of 1 to 1440 minutes, based on network performance. The default value of this parameter is 4 minutes.
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